What should you keep in mind when approaching a vehicle from the rear that is stopped at a crosswalk?

• If there are no pedestrians crossing, you can proceed without caution.
• The vehicle at the crosswalk may be experiencing a mechanical issue.
• If there are pedestrians crossing, you should proceed with caution.
  Explanation:

  "When approaching a vehicle from the rear that is stopped at a crosswalk, you must always assume that pedestrians may be crossing, even if they are not immediately visible."
• If the vehicle is parked, you can continue without stopping.